Doesn't help ARM with its massive register set, but halves the size on x86 and all other targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151760
91177308-0d34-0410-b5e6-
96231b3b80d8
return true;
}
-static const char *getMinimalTypeForRange(uint64_t Range) {
- assert(Range < 0xFFFFFFFFULL && "Enum too large");
- if (Range > 0xFFFF)
- return "uint32_t";
- if (Range > 0xFF)
- return "uint16_t";
- return "uint8_t";
-}
-
static void EmitCustomOperandParsing(raw_ostream &OS, CodeGenTarget &Target,
const AsmMatcherInfo &Info, StringRef ClassName) {
// Emit the static custom operand parsing table;
return Namespace + "::" + R->getName();
}
+const char *llvm::getMinimalTypeForRange(uint64_t Range) {
+ assert(Range < 0xFFFFFFFFULL && "Enum too large");
+ if (Range > 0xFFFF)
+ return "uint32_t";
+ if (Range > 0xFF)
+ return "uint16_t";
+ return "uint8_t";
+}
/// getTarget - Return the current instance of the Target class.
///
/// namespace qualifier if the record contains one.
std::string getQualifiedName(const Record *R);
+/// getMinimalTypeForRange - Helper method to get the minimum data type required
+/// to represent Range.
+const char *getMinimalTypeForRange(uint64_t Range);
+
/// CodeGenTarget - This class corresponds to the Target class in the .td files.
///
class CodeGenTarget {
// Emit the data table for getSubReg().
if (SubRegIndices.size()) {
- OS << "static const unsigned short " << TargetName << "SubRegTable[]["
- << SubRegIndices.size() << "] = {\n";
+ OS << "static const " << getMinimalTypeForRange(Regs.size()) << ' '
+ << TargetName << "SubRegTable[][" << SubRegIndices.size() << "] = {\n";
for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
const CodeGenRegister::SubRegMap &SRM = Regs[i]->getSubRegs();
OS << " /* " << Regs[i]->TheDef->getName() << " */\n";